Mainspring Replacement
Need a new
mainspring for your clock? We can help! Send us your clock barrel and we'll replace the old mainspring with a brand new one. Here's how it works:
- Ship your clock barrel to us.
- We'll swap out the old mainspring with a new one.
- You pay for return shipping during checkout.
- The price for this service includes the cost of the mainspring, so you'll have everything you need to get your clock running smoothly again.
The Process
With the Hole-End Mainspring Replacement Service, the broken or worn mainspring is taken out of the barrel in a safe way. Next, the measurement of the thickness and width of the spring is taken. To get the correct length, the old spring needs to be unwound to its full extent so it can be measured. So the final step is matching that measurement to the chart. This ensures the correct spring will be put into the barrel. So, the next step is the actual installation of the
spring. The use of a mainspring winder enables a secure and tight fit into the barrel. After that your new spring will be on its way back to you. We highly recommend using our Hole-End Mainspring Replacement Service because mainsprings can be very dangerous. We have the appropriate tools, and the knowledge, to get it done correctly. The power in these springs has the capability to cut fingers. So utilizing this service makes for a quick and painless repair. Thus making your clock able to be back up in running in no time. Of course, if you ever have any questions about this process please feel free to ask.
I have three mainspring barrels (2 #40 and 1 #41) that come from a Franz Hermle movement (#A401-006). I do not know which ones are not working. If I send in all three, will you check to see which ones need to be repaired and then only repair the non-functioning ones? And how should I fill out the order form?
Thank you.
Each mainspring swap is $100, you need 3. The new movement is $323 with all of this, better deal. Please order from this link
https://www.clockworks.com/product/new-340-020-clock-movement
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I have a Henri Eugene Farcot, Time Only Brass Wall Clock, 8 Day Key Wind, that the single barrel spring has broken. I have removed the movement from this clock and ready to ship it to you to have the mainspring replaced in the movement. Just confirming the cost for this, before I purchase this service on your website.
If you send the barrel only, with nothing else, with the broken mainspring installed still, the price is $95
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I have a Jauch PL 46 movement, and the time spring barrel cap is worn so that the shaft cants in the hole. The barrel gear is 46.5 mm D, barrel body is 41.5 mm D, barrel cap is 40 mm D, total barrel thickness is 13 mm, total thickness with ratchet is 22 mm. Is this something you can replace or repair?
The movement is obsolete, so we will need the movement here to do anything, either replace with a used good barrel or repair the old. We will not work on the barrel alone, the complete movement itself is send in with $200 for us to clean / inspect / quote for the restoration.
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
do you rebuild the rivits which hold the spring when needed?
Yes happens often that this is needed. We can swap the spring for $100 and fix the barrel for another $150 with new rivets, reform it also.
Please let us know.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Hermle 141-041 with a bad mainspring. Can I buy a replacement mainspring?
Yes, would you like the mainspring alone or the mainspring inside the barrel with it?
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a clock with a broken main spring. On the back this is what I find: 70, Mason and Sullivan Co., no(0)jewels, Made in West Germany, Unadjusted, 351.050, 85cm,70.77 . Can this be repaired and how much would it cost. Thank you.
It would cost $100 for the mainspring swap out only, includes the mainspring, you would send us the barrel with spring in it alone. However, I do not recommend it. Your clock movement was made in 1970 and these are typically 30 year units at very best. The new one is currently only at $360 and will be ready for another good long run. Comes with instructions, and support.
Please order the 351-050 85cm at this link
https://www.clockworks.com/product/new-351-050-clock-movement-by-hermle
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Howard Miller wall clock Model No. 612-578. it has 3 spings in it. The one that makes the clock run is broken. It is in a barrel. Is this something you could fix?
What are the numbers off of the back plate of the clock movement itself? If it is hard to get to, usually you can stick a cell phone up behind the movement and get a picture of the numbers. Or through the side access panel if there is one.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
The nuber on the back of the movement are , 1051-030A 38cm over 111.15
For $100 we will take the barrel in, swap the mainspring, send it back
Would you like to do this?
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
The mainspring in an old German pendulum wall clock has broken (I guess). It winds freely. How do I get to it, to send it to you for replacement/repair? The movement has the numbers 34/116 and 5181. Any suggestions? Thanks
Can you visually see the mainspring or is the spring enclosed inside a barrel cover? Is the barrel removable by you, to send it in for mainspring swap? The cost for this service is $100 and includes the cost of the mainspring itself
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a barrel with the mainspring removed. Can I still take advantage of this service if I send in the barrel and broken mainspring for a reinstall?
Yes but please put a note as to what direction the mainspring wound in the barrel
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have a Seth Thomas pre 1950, that I think the mainspring is broken. This is my first attempt at clock repair so I admit ignorance. The spring is housed in a totally enclosed “barrel”. Is that something you guys can repair/replace?
Yes please send the barrel in with the mainspring still inside.
Please let us know its coming by filling out the repair form at this link
https://www.clockworks.com/clock-repair-service.html
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I have an old carriage clock that needs a new main spring when I took out the old spring
the barrel hook? Came out .can you replace that when replacing the main spring ?
Please send us the barrel alone and nothing more if you would like the mainspring replaced within the barrel.
Send the movement complete only if you want the entire movement restored or cleaned, see this link
https://www.clockworks.com/clock-repair-service.html
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com